Salt-tolerance of Phaseolus vulgaris L. is a function of the potentiation extent of antioxidant enzymes and the expression profiles of polyamine encoding genes

Taïbi, Khaled; Abderrahim, Leila Aït; Boussaid, Mohamed; Bissoli, Gaetano; Taïbi, Fadhila; Achir, Mohamed; Souana, Kada; Mulet, José

doi:10.1016/j.sajb.2021.03.045

Cited by 14 publications

(6 citation statements)

References 46 publications

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“…At a salt stress level of 6 dS/m, the reduction in total soluble sugars was around 45%, while the increase in total free amino acids and proline were about 43 and 78%, respectively, when compared to the control. Similar findings were reported by (Taïbi et al, 2021) in Phaseolus vulgaris plants. In comparison to the untreated control plants, nano stimulators treatment resulted in significant increases in total soluble sugars, total free amino acids, and proline, with increases of about 87, 72, and 52%, respectively in common bean plants.…”

Section: Total Soluble Sugars Total Free Amino Acids and Proline Conc...supporting

confidence: 91%

“…In the 1 st season, the concentrations of N, P, and K in common bean declined by about 19, 25 and 19%, respectively, while the Na + content increased by around 116% under 6 dS/m salt stress. These results are similar to those of Taïbi et al (2021), on Phaseolus vulgaris. The increase in membrane integrity percentage is thought to be the cause of salt stress's negative influence on nutrient uptake (Table 3).…”

Section: Total Soluble Sugars Total Free Amino Acids and Proline Conc...supporting

confidence: 90%

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Physiological responses of Phaseolus vulgaris to some Nano bio-stimulants under salt stress conditions

Selim

2022

Annals of Agricultural Science, Moshtohor

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The aim of this study was to evaluate some physiological parameters and biochemical changes in common bean plants (Phaseolus vulgaris) as a result of the foliar spraying of some nano stimulants (silicon, polyamine, seaweed and biofertilizer) under salt stress conditions. The pot experiment was conducted in the Agriculture Faculty's greenhouse at Menoufia University in Shibin El-Kom, Egypt during the two summer seasons of 2019 and 2020. Salt stress at level 6 dS/m significantly decreased growth, physiological characteristics, photosynthetic pigments, chemical measurements, and yield parameters. Meanwhile, the use of nano stimulators reduced the adverse effects of salinity by improving water relations, chlorophyll, enzymatic antioxidants (peroxidase and polyphenoloxidase), non-enzymatic antioxidants defense system (carotene, total soluble sugars, total amino acids, and proline), N, P and K and decreased Na+ concentrations resulted in high seed yield, particularly with nano silicon followed by nano biofertilizer. As the level of salinity increased, the seed weight (g/plant) decreased significantly by about 40% at the salt level 6 dS/m. In comparison to the control, using nano silicon resulted in significant increases in the leaf area, relative water content, proline concentration and seed weight by about 84, 53, 49 and 91%, respectively at 6 dS/m salinity level. To mitigate the negative impacts of salinity and improve the production, this study suggests spraying common bean plants with nano silicon followed by nano biofertilizer.

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Section: Total Soluble Sugars Total Free Amino Acids and Proline Conc...supporting

confidence: 91%

Section: Total Soluble Sugars Total Free Amino Acids and Proline Conc...supporting

confidence: 90%

Physiological responses of Phaseolus vulgaris to some Nano bio-stimulants under salt stress conditions

Selim

2022

Annals of Agricultural Science, Moshtohor

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“…It has been reported that the differential trait between a drought-tolerant and a drought-sensitive cultivar of common bean (Phaseolus vulgaris) is the ability of the tolerant cultivar to degrade starch [51]. Another study provided additional evidence that the amount of free sugars is a distinctive trait for salt-tolerant cultivars [52] and a droughtresistant cultivar presented elevated accumulation of carbohydrates in the seeds [53]. A recent report also found that, under drought stress, waxy maize alters the pattern and the physicochemical properties of starch [54].…”

Section: Discussionmentioning

confidence: 98%

The Biostimulant, Potassium Humate Ameliorates Abiotic Stress in Arabidopsis thaliana by Increasing Starch Availability

Benito

Bellón²,

Porcel

et al. 2023

IJMS

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Potassium humate is a widely used biostimulant known for its ability to enhance growth and improve tolerance to abiotic stress. However, the molecular mechanisms explaining its effects remain poorly understood. In this study, we investigated the mechanism of action of potassium humate using the model plant Arabidopsis thaliana. We demonstrated that a formulation of potassium humate effectively increased the fresh weight accumulation of Arabidopsis plants under normal conditions, salt stress (sodium or lithium chloride), and particularly under osmotic stress (mannitol). Interestingly, plants treated with potassium humate exhibited a reduced antioxidant response and lower proline accumulation, while maintaining photosynthetic activity under stress conditions. The observed sodium and osmotic tolerance induced by humate was not accompanied by increased potassium accumulation. Additionally, metabolomic analysis revealed that potassium humate increased maltose levels under control conditions but decreased levels of fructose. However, under stress, both maltose and glucose levels decreased, suggesting changes in starch utilization and an increase in glycolysis. Starch concentration measurements in leaves showed that plants treated with potassium humate accumulated less starch under control conditions, while under stress, they accumulated starch to levels similar to or higher than control plants. Taken together, our findings suggest that the molecular mechanism underlying the abiotic stress tolerance conferred by potassium humate involves its ability to alter starch content under normal growth conditions and under salt or osmotic stress.

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“…Additionally, photosynthetic efficiency was also increased due to the priming with SPM and SPD. Taïbi et al (2021) reported an altered content of polyamines in Phaseolus vulgaris L. under salt stress, and the tolerant cultivar accumulated a higher content of spermidine while both cultivars showed different gene expression levels encoding enzymes associated with spermine biosynthesis. Antoniou et al (2021) also noted that salt stress resulted in an increase in spermine in a salt-tolerant cultivar of Medicago truncatulato Gaertn.…”

Section: Improved Salt Tolerance By Different Priming Agentsmentioning

confidence: 99%

“…In a primed state, plants become ready and induced to endure the prevailing stress condition ( Molassiotis et al, 2016 ; Marthandan et al, 2020 ). Various research reports have demonstrated the positive impacts and the increases in salt-stress tolerance of primed plants ( Taïbi et al, 2021 ; El-Beltagi et al, 2022 ; Xie et al, 2022 ). Different chemicals (synthetic and natural) caused a priming state in plants, which then showed enhanced growth and increased yield under saline stress ( Gohari et al, 2020a , b ; Liu et al, 2022b ).…”

Section: Improved Salt Tolerance By Different Priming Agentsmentioning

confidence: 99%

Chemical priming enhances plant tolerance to salt stress

et al. 2022

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Salt stress severely limits the productivity of crop plants worldwide and its detrimental effects are aggravated by climate change. Due to a significant world population growth, agriculture has expanded to marginal and salinized regions, which usually render low crop yield. In this context, finding methods and strategies to improve plant tolerance against salt stress is of utmost importance to fulfill food security challenges under the scenario of the ever-increasing human population. Plant priming, at different stages of plant development, such as seed or seedling, has gained significant attention for its marked implication in crop salt-stress management. It is a promising field relying on the applications of specific chemical agents which could effectively improve plant salt-stress tolerance. Currently, a variety of chemicals, both inorganic and organic, which can efficiently promote plant growth and crop yield are available in the market. This review summarizes our current knowledge of the promising roles of diverse molecules/compounds, such as hydrogen sulfide (H2S), molecular hydrogen, nitric oxide (NO), hydrogen peroxide (H2O2), melatonin, chitosan, silicon, ascorbic acid (AsA), tocopherols, and trehalose (Tre) as potential primers that enhance the salinity tolerance of crop plants.

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Salt-tolerance of Phaseolus vulgaris L. is a function of the potentiation extent of antioxidant enzymes and the expression profiles of polyamine encoding genes

Cited by 14 publications

References 46 publications

Physiological responses of Phaseolus vulgaris to some Nano bio-stimulants under salt stress conditions

Physiological responses of Phaseolus vulgaris to some Nano bio-stimulants under salt stress conditions

The Biostimulant, Potassium Humate Ameliorates Abiotic Stress in Arabidopsis thaliana by Increasing Starch Availability

Chemical priming enhances plant tolerance to salt stress

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